- Crazy idea? - 7 Updates
- Catastrophe - help required. - 1 Update
| etpm@whidbey.com: May 08 10:06AM -0700 On Tue, 07 May 2019 22:33:54 -0700, Jeff Liebermann <jeffl@cruzio.com> wrote: >>look at some surplus hydraulics. >I also like the hydraulics idea. It's far more complicated, but also >far more useful and versatile. I, after being chastised by you more than once, made sure to mention that the clutch draws about 5 amps in my original post. I appreciated the chastisement because it helps me to write better posts. The clutch is designed to handle about 16 HP, which is what my tractor PTO was able to deliver when new. But you are correct about the clutch probably slipping because it is designed to be run at about 2800 RPM. Especially with the big augur, which is 11 inches in diameter. I'm pretty sure the 6 inch one would be OK though because it is now being powered by a 3 HP motor. I am gonna look at all the surplus hydraulic I know of to see how much it would cost for the pump and motor combo. It really wouldn't be very complicated and I do understand hydraulic systems. Eric |
| "pfjw@aol.com" <peterwieck33@gmail.com>: May 08 11:13AM -0700 I am not suggesting your idea(s) is (are) crazy. Nor am I suggesting that the suggestions here are crazy, either. But. William of Occam suggested that we not multiply entities needlessly. Yes, you have a 1930s-40s tractor that uses a system that is radically unsafe by modern standards. But, it works as found, as-is. My summerhouse neighbor has a tractor of similar vintage with a similar system in place. He has rigged a small tripod-type device that attaches and swings up to hold the auger in the raised position without need to run the hydraulics. That device fits so closely and looks so much like it was 'meant to be' that it might be factory-original. I will ask him the next time I see him. Would something like that even fit/serve/be possible without such gyrations as you are contemplating for a clutch, auxiliary power and much more? There is another very common solution called "limiter chains" that are entirely adjustable, and would allow you to fix the travel-height of the auger by their length. Lastly, as these are expensive, there is a PTO Slip-clutch (to be distinguished from an overrun clutch) that will also decouple the PTO from the device attached. The chains and the clutch are off-the-shelf devices still made for that tractor to this day. The first device I cannot find - it may be home-made. Jeff A: a 6 V aux.socket will charge a phone just as easily as a 12V device, what with smart chargers these day. Just an FYI. Peter Wieck Melrose Park, PA |
| etpm@whidbey.com: May 08 12:11PM -0700 On Wed, 8 May 2019 11:13:03 -0700 (PDT), "pfjw@aol.com" >Jeff A: a 6 V aux.socket will charge a phone just as easily as a 12V device, what with smart chargers these day. Just an FYI. >Peter Wieck >Melrose Park, PA Can your neighbor's device be used while sitting on the tractor? I need to be on the tractor when operating the post hole digger. Because the auger must be rotating when it is raised and to hold it in the raised position. And I stay away from the rotating auger. If your neighbor's device can be worked from the seat then if you could please take some pictures and email them to me I would be very grateful. Pictures with a yard stick or tape measure included would be a big help for scaling. I still like Jeff's hydraulics idea. It gets rid of the spinning driveshaft and allows reversing out of the hole. More than once I have hit roots or big rocks that required removing the shear bolts and unscrewing the auger from the ground with a pipe wrench. I have looked for and not found a clutch that is made for disconnecting the PTO rotation from the device being powered. You got a link? There are slip clutches but they won't work and I already have an over running coupler installed but they are just to keep the driven implement from back driving the tractor. Eric |
| "pfjw@aol.com" <peterwieck33@gmail.com>: May 08 12:30PM -0700 We will not be in the area for a bit - but he is very friendly and I would be glad to get pictures if he is available. Peter Wieck Melrose Park, PA |
| "pfjw@aol.com" <peterwieck33@gmail.com>: May 08 12:56PM -0700 In the meantime: https://xtremeope.com/?mrkgcl=1182&mrkgadid=3258277977&adpos=1o1&creative=228321906906&device=c&matchtype=b&network=g&gclid=CjwKCAjw_MnmBRAoEiwAPRRWW67TDdJyS3pzTEkz9hFZU02RHKmixWAY0aJ2yVuK-0VF7zRMYaRErRoCBWAQAvD_BwE Once upon a time made electric PTO clutches. All I see now are mower-clutches vs. in-line clutches. But they may still be available. More later, I hope. Peter Wieck Melrose Park, PA |
| etpm@whidbey.com: May 08 01:01PM -0700 Thanks. I'm gonna continue using the digger while I work on a hydraulic solution. But the frame may be so much cheaper I'll be persuaded to go that way. Eric On Wed, 8 May 2019 12:30:31 -0700 (PDT), "pfjw@aol.com" |
| Jeff Liebermann <jeffl@cruzio.com>: May 08 09:58PM -0700 >>the clutch at 12V. My guess(tm) is that it's not much. If so, then >>you don't need the battery and charging circuit. You could actuate >>the clutch solenoid solely with the battery. Oops. I screwed up the above paragraph. As you noted, you did mention that the 12v clutch drew about 5A. That's not huge, and I think it might work. It will need some testing to see what the clutch will do at voltages below about 10V. I also screwed up the last word. Instead of actuating the clutch solenoid with the battery, it should be actuated with the alternator, generator, or PM motor. >mention that the clutch draws about 5 amps in my original post. I >appreciated the chastisement because it helps me to write better >posts. Thanks. I just hate it when I make a mistake and need to be reminded that I'm not perfect. >2800 RPM. Especially with the big augur, which is 11 inches in >diameter. I'm pretty sure the 6 inch one would be OK though because it >is now being powered by a 3 HP motor. I don't know. Big maybe, but it is worth trying the 6 inch clutch. However, I still like the hydraulic solution better because of the versatility. > I am gonna look at all the surplus hydraulic I know of to see how >much it would cost for the pump and motor combo. It really wouldn't be >very complicated and I do understand hydraulic systems. My experience with hydraulics is limited to helping build Rose Floats for Cal Poly Pomona in the late 1960's: <http://www.learnbydestroying.com/jeffl/pics/jeffl/slides/RoseFloat01.html> to rebuilding and repairing 3 hydraulic wood splitters over the last 40(?) years. In other words, I'm not an expert on hydraulics. -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
| Jeff Urban <jurb6006@gmail.com>: May 08 04:03PM -0700 On Monday, May 6, 2019 at 5:04:42 PM UTC-5, Trevor Wilson wrote: > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus That ain't nothin'. One of my folk is a bounty hunter, we hook up when we can. He is enjoying every minute of insanity of course. Calls me up last week after we hoked and I got in his truck. I was at the bench and had to grab something with my right hand and my left hand was busy. I hit a bunch of that birdshit and I needed it off now. I wiped it on my pantleg. No more of that. |
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